The worlds first proper computer was built in 1948. It was called the Manchester Mark I and stored and processed any information fed into it very quickly by use of an electronic transistor.
In 1958 Texas Instruments, an American firm, produced the first integrated circuit or silicon chip. All the electrical components in the computer were now combined into one slice of silicon, a type of quartz which was grown artificially and cut into very thin slices. Up to 500 chips could be made from each of these slices and each of these chips could contain, in turn, up to 500 photographic copies of the design of the electrical circuit. In laymans terms, silicon chips are minute and contain a lot of information. The silicon chip enabled the arrival, in 1982, of the word-processor as a mainstream writing tool. Nowadays, things are even easier. Computer programmes have been developed which introduce the concept of formula letters, facilitate the addressing of envelopes and introduce the idea of instant mass mailing.
ILLUSTRATION 2 Typical postcard layout. Keep your message brief